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Finding the Fourth Proportional to 68,489.54, 94,515.69 and 38,274.86

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Solution

The fourth proportional to 68,489.54, 94,515.69 and 38,274.86 is: 52,819.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,489.54 : 94,515.69 = 38,274.86 : x
  2. Step 2: Convert to fraction form
    68,489.54/94,515.69 = 38,274.86/x
  3. Step 3: Cross multiply
    68,489.54x = 94,515.69 × 38,274.86
  4. Step 4: Simplify right side
    68,489.54x = 3,617,574,802.55
  5. Step 5: Solve for x
    x = 3,617,574,802.55/68,489.54
  6. Step 6: Final answer
    x = 52,819.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.